Heat assisted magnetic recording system having at least three possible magnetic configurations per physical bit
US9818440B1 · kind B1 · utility
6Cited by
14References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2016 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Jun 27, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a heat assisted magnetic recording system includes a magnetic recording medium comprising a magnetic recording layer, where the magnetic recording layer includes a plurality of physical bits. Each physical bit has a perpendicular magnetic anisotropy and one of at least three magnetic states, where the at least three magnetic states include a +1 magnetic state, a 0 magnetic state, and a −1 magnetic state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.